Universität zu Köln

Shi, Jing, Podola, Bjoern and Melkonian, Michael (2014). Application of a prototype-scale Twin-Layer photobioreactor for effective N and P removal from different process stages of municipal wastewater by immobilized microalgae. Bioresour. Technol., 154. S. 260 - 267. OXFORD: ELSEVIER SCI LTD. ISSN 1873-2976

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Abstract

In the view of limited phosphorous resources and tightened discharge regulations, the recovery of phosphate and nitrate from wastewater is of great interest. Here, the integration of microalgae into wastewater treatment processes is a promising approach. A prototype-scale Twin-Layer photobioreactor immobilizing the green alga Halochlorella rubescens on vertical sheet-like surfaces was constructed and operated using primary and secondary municipal wastewater. The process was not impaired by suspended solids, bacteria or loss of algal biomass by leaching. The average areal microalgal growth was 6.3 g m (2) d (1). After treatment, P and N concentrations in the effluents could efficiently be reduced by 70-99%, depending on element and type of wastewater. Mean effluent values of <= 1.0 mg L (1) P and 1.3 mg L (1) N met the legal discharge limits of the European Water Framework Directive and show a potential to comply with upcoming, more stringent legislation. (C) 2013 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Shi, Jing UNSPECIFIED UNSPECIFIED UNSPECIFIED Podola, Bjoern UNSPECIFIED UNSPECIFIED UNSPECIFIED Melkonian, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-447475
DOI:	10.1016/j.biortech.2013.11.100
Journal or Publication Title:	Bioresour. Technol.
Volume:	154
Page Range:	S. 260 - 267
Date:	2014
Publisher:	ELSEVIER SCI LTD
Place of Publication:	OXFORD
ISSN:	1873-2976
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUTRIENT REMOVAL; PHOSPHORUS REMOVAL; ALGAE; CULTIVATION; NITROGEN; BIOFILM; BIOMASS Multiple languages Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44747